Informational use
Historical claims and visitability assessments are based on the cited published snapshot and review dates. Conditions can change after review.
Before travel, verify time-sensitive access, safety, accessibility and admission requirements with an appropriate current source.
No transaction service
The first release does not sell tickets, make bookings, collect payment, send email, create third-party accounts or publish user material.
Respect access limits
A historical association does not authorize entry to private, restricted or closed property. Follow posted rules and obtain permission where required.
Reuse and attribution
Each exported resource carries its own rights and attribution information. Using the service does not grant rights to third-party text, images, audio, translations or datasets.
Quotas and cost units
Cost units are service quotas, not currency or automatic charges. Browser-rendered HTML has a separate 2,000-unit anonymous monthly budget, while anonymous REST and MCP machine calls use the 500-unit monthly budget; both remain minute-limited and API keys can provide higher configured quotas. Requests can still be rejected when input, rate or monthly limits are exceeded.